8.
33 = 2y + 1 + y - 1
Add the 1 and -1
Add the y and 2y
33 = 3y
11 = y
9, AQ = 2y + 1
2(11) + 1
22 + 1
23
AQ = 23
10, QX = y - 1
QX = 11 - 1
10
QX = 10
11. 62 = 3x - 4 + 3x - 4
Add -4 and -4
Then add 3x + 3x
62 = 6x
Divide 62 by 6x
x = 11 2/3
AB = 3x - 4
3 (11 2/3) - 4
3 * 11 2/3 = 35
35 - 4 = 31
AB = 31
Both sides are equal, so BC also equals 31
12. 206 = 3x - 4 + 3x - 4
206 = 6x
x = 34 1/3
AB = 3x - 4
AB = 3(34 1/3) - 4
AB = 103
Because AB and BC are the same, BC also equals 103.
